jenson



Aug. 27, 1929. R. H. YJENSON 1,725,934

CASTING MACHINE Filed p 1 1921 s Sheets-Sheet 1 INVENTOQ HMM ATTOR NEY kw/4. M W

Aug. 27, 1929. I R. H. JENSON 1,725,984

CASTING MACHINE Filed Sept. 19, 1927 5 Sheets-Sheet 2 v v \n Q iu N m j N I Q k A l I N N- I l I I I b- D s INVENTOIE ATTORNEY Aug. 27, 1929. R. 'H.'JENSON CASTING MACHINE I Filed p 19, 1927 3 sheets-sheet s INVENTOE a I f ww mrat ATTORNEY-3 Patented Aug. 27, 1929. t

UNITED STATES 1,7z5ss4 PATENT OFFICE.

ROBERT E. JENSON, OF HOUSTON, TEXAS, ASSIGNOR, BY MESNE ASSIGNMENTS, 'IO

BROWN METAL AND CORK COMPANY, A CORPORATION.

CASTING MACHINE.

Application filed September 19, 1927. Serial No. 220,418.

This invention relates to new and useful improvements in a casting machine.

One object of the invention is to' provide a machine of the character described specially designed for the purpose of casting weights, or sinkers, from fusible metal, for fishing tackle.

Another object or the invention is to provide a machine of the character described having a mould composed of confronting jaws having complemental, registering, casting cavities wherein the sinkers are formed, or cast, with means associated with said jaws for grooving the sinkers, as cast, and means for automatically operating the jaws into active relation, to form the moulds and into inactive relation to release the cast sinkers therefrom.

Another object of the invention is to provide a device of the character described equipped with novel means for pouring the melted metal into the moulds. I

With the above and other objects in view this invention has particular relation to certain novel features of construction operation and arrangement ofparts an example of which is given in this specification and illustrated in the accompanying drawings wherein Figure 1 shows a plan viewof the machine.

Figure 2 shows a side view, partly in section.

Figure 3 shows an inside View of the mould jaw.

Figure 4 shows a sectional view thereof, taken on the line 4-4 of Figure 3.

'Figures 5 and 6 show side and end views respectively of the completed sinker.

Figure 7 shows an end view of the machine, and v Figure 8 shows a transverse I sectional view thereof.

Referring now more particularly to the drawings, wherein like numerals of reference designate similar parts in each of the figures the numeral 1 designates a stand on which the machine may be mounted. A suitable framework for the machine has been provided which, in the present instance, is shown as comprising the transverse end casting 2, 3, and the base 4 connecting said end castings, and mounted on said stand, and having the central opening 5. At one side of the framework there are the lengthwise spaced of said blocks.

tracks 6, 6, secured to the ends 2, 3. Slidably mounted on these tracks are the oppositely disposed jaw blocks 7, 7, to the facing ends ofwhich the mould jaws 8, 8, are detachably secured. The jaw blocks 7 are retained on the tracks by means of the respective retaining flanges 9,9, which are secured to said tracks and whose upper edges 1010 override the lengthwise lateral shoulders 11 Fa'stenedto the outer ends of the blocks 7 are the guide rods 12, 12, which work'throu'gh the aligned bearings 13, 13 carried by the respective brackets 14, 14, which are attached to the respective ends of the frame work.. Fixed on the respective rods 12, between the corresponding bearings 13 are the bearing collars 15. The outer end of each guide rod 12 has a cross yoke 16, secured thereto and pull springs 17, 17, connect the respective ends of'these cross yokes to the framework of the machine.

There are the transverse cam shafts 18, 18, at each end of the framework, mounted to rotate in the end bearings 19,19 carried by said framework. Each cam shaft has a cam 20 fixed thereon, aligned, respectively with the roller bearings 22, 22 carried by the lower ends of the actuating levers 23, 23. Each lever 23, is pivoted, at an intermediate point,

tothe inner end of the corresponding arm 24, which is anchored to the adjacent bracket 14, and the upper end of each lever 23 engages the inner side of the corresponding bearing collar 15.

The outer ends of the cam shafts 18 have the bevel pinions 25, 25, fixed thereon which are in mesh with similar pinions 26, 26 which are fixed on the lengthwise drive shaft 27,

rotatably mounted in suitable bearings carried by the framework. One end of the shaft 27 has a spur gear 28 fixed thereon andoperatively connected with the power shaft 29 through suitable reduction gearing designated generally by the numeral 30. The

power shaft 29 carries a pulley 31 adapted springs 17 will return the mould jaws into co-operating, or active position. The mould will thus be alternately opened and closed.

The inner, or confronting, sides of the jaws 8 have complementary, matrices, o'r mould spaces, 81, positioned to register when the mould jaws are in active position, as above defined. The respective matrices have the usual gates 32 through which the casting metal may be poured.

.Above the mould there is a receiving pan 33, hinged at one end to the standard 34, which upstands from the frame work of the machine. This pan, when in open, or inactive position, as shown in dotted lines in Figure 7, rests against the stop arm 35, upstanding from the frame work, and when in active position rests :on top of the mould, with the oblong slot 86, in the bottom thereof, aligned with the gates 82. The free end of said pan has a suitable handle 37 by means of which it may be moved into either of such positions.

Pivotally mounted on the standard 39 there is a hand lever 4'0 whose outer end is formed into a grip 41 and whose inner end is pivoted to the lower end of the link 42. This link supports the draw core which is pivotally connected to the upper end thereof and whose upper edge works through an oblong slot 44 in the mould formed by "spacing the lower parts of the jaws 8'apart, and into the matrices or mould'space's 81. This spacing is accomplished by forming lengthwise spacer rib 45 along the upper edge of the inner side one of said jaws 8. The rangeof upward movement of the'core 43 may be regulated by an adjusting screw 46 which is threaded downwardly through the outer end of the lever 40 and whose free end is adapted to rest on the base 4.

In the operation the mould jaws Sare reciprocated intermittently backand forth into and out of active position, or relation, by means and in the manner hereinbefore described. Wheat-he mould jaw's 'are in active relationthe pan 33 maybe swung forwardly ontothe mould and the 'moulten metal poured therein and the metal will run through the slot 26 and the gates 32 into the matrices. These matrices are ofsuch shape that end lips 47, 47, will be formed-on thersinker and the upper edge of the core 48 will form :a lengthwise, line receiving groove 48, therein between said lips. The weight of the 'outer end of the lever-40 is suflicient to hold said core-in said position during the moulding process. The groove 48 isprovided to -re- 'ceivef'the fishing line*and the lips 47 are provided to 'be'bent around said line to secure the sinker 'to the line.

While the sinkers are being cast the cams 20 are rotating idly :and just before said cams actuate the levers 23 the core '43 is withdrawn from the matrices, by manually elevating the outer end of the lever 40 and the pan 33 is swung upinto inactive position thus severing the small necksof metal connecting the cast sinkers with the supply of metal in the pan and discharging the remaining contents of said pan therefrom. lVhen the cams actuate said levers 23 the mould jaws 8 are moved apart, as hereinbefore described, and the cast sinkers drop from the matrices through between the tracks 6 and through the opening 5 in the base, into any suitable receptacle provided to receive them.

The range of movement of the mould jaws toward each other may be regulated by means of the adjustable stops '49, 49 ,adjustably connected to the outer ends of the rods 12 and adapted to abut the outer ends of the brackets 14.

While I have shown what I now consider the preferred form of the invention it is obvious that mechanical changes may be made therein and equivalents substituted for the parts shown and I hereby reserve, the right to make such mechanical changes and adaptations as may be comprehended within the scope of the appended claims.

What I claim is 1. A casting machine including a frame, a track thereon, relatively movable mould forming members on the frame, means normally holding the facing sides of said members in adjacent relation to form a mould, and for restoring such relation when the same is disturbed, said mould having a matrix provided with agate and having an elongated bearing, a receiverfor moulten metal associated with the mould and having a discharge opening, said receiver being movable into one position toalign said opening with said gate, and into another position out of co-operative relation with said mould, mechanism for relatively moving said mould forming members apart to permit the release of the east objects from said matrix a draw core movable into and. out of 'said matrix, said core being blade like in form, and being movable through said bearing into the matrix to form agroove in the cast object, and means for intermittently actuating said moving mechanism.

2. 1A casting machine including a frame, confronting jaws on the frame, means for normally maintaining the facing sides of said ijaws in adjacent relation to form a mould, said mould have an internal cavity forming a matrix, said ma'trixhavingagate and being provided with 'an oblong draw core bearing, means for introducing molten metal through the gate into the matrix, a pivotally mounted lever,'a draw core work ing in said bearing and'con'nectedto and operable bysaid' lever and norma-l-lysproj ectin'g into'the matrix to forma groove in the object cast therein,and means for relatively moving said jaws apart to automatically release the cast object therefrom.

3. A casting machine including a frame, confronting jaws on the frame, means for 5 normally maintaining the facing sides of said jaw in adjacent relation to form a mould, said mould having an internal cavity forming a matrix, said matrix having a gate and being provided with an oblong draw 10 core bearing, means for introducing molten metal through the gate into the matrix, a pivotally mounted lever, a draw core working in said bearing and connected to and operable by said lever, and-means for relatively moving said jaws apart to automatically release the cast object therefrom, and a weight at the outer end of the lever forming means adapted to normally hold the draw core projected through said bearing in cooperating relation with the matrix whereby a groove is formed in the cast object.

In testimony whereof I, have signed my name to this specification.

ROBERT H. JENSONQ 

